Sharon Wilkens places a rose on the casket of her son, 1st Lt. Justin James Wilkens, during his burial service at Pilot Butte Cemetery in Bend, Ore., Saturday, March 24, 2012. Wilkens, 26, was one of four members of the U.S. Air Force killed on Feb. 28 when their small plane went down in Djibouti, Africa, where he was serving his third deployment with the 34th Special Operations Squadron.